Sandy Bridge架构与AVX图解

这几天一直在学SpringMVC，第一次参照网上的例子，直接把SpringMVC基于xml的入门搞定了，但是在用annotation的时候纠结了蛮久的，才搞好，啥也不多说了，上代码。首先是web.xml的：  

 

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/classes/log4j.properties</param-value>
</context-param>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>

 简单的说明一下，dispatcherServlet就不多说了，整个SpringMVC action的入口。log4jConfigLocation是log4j的配置文件，我这里用的是

网上的模板，内容很多，大家可以自己搜，或者我另外开文发出来。contextConfigLocation是用于ContextLoaderListener的

参数，为了能够读取applicationContext.xml。

接下来是dispatcherServlet-servlet.xml：

 

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 
<context:annotation-config />
<!-- 把标记了@Controller注解的类转换为bean -->
<context:component-scan base-package="com.yanbo.controller" />

<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>

<!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<!-- 对模型视图名称的解析，即在模型视图名称添加前后缀 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/view/" p:suffix=".jsp" />

<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
p:defaultEncoding="utf-8" />
</beans>

 

   内容都在注释里，这里声明，这个是参考别人的配置，在此多谢很多前辈。

然后是applicationContext.xml：

 

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<context:annotation-config />
<context:component-scan base-package="com.yanbo" />  <!-- 自动扫描所有注解该路径 -->
</beans>

  然后是java代码：

首先是controller的：

 

package com.yanbo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;

import com.yanbo.service.IUserService;

@Controller
public class UserController {
@Autowired(required=true)
private IUserService userService;
@RequestMapping("/user.do")
public String load(ModelMap modelMap) {
modelMap.put("user", userService.loadUser());
return "student";
}
}

 这里使用了@controller，省了很多代码和配置文件，非常简洁，使用了@Autowired进行bytype的自动注入，@RequestMapping("/user.do")是说明这个方法处理user.do这个请求，使用起来很方便吧

然后是service：

接口：

package com.yanbo.service;

import java.util.List;

import com.yanbo.pojo.User;

public interface IUserService {
public List<User> loadUser();
} 

  实现：

 

package com.yanbo.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yanbo.dao.IUserDao;
import com.yanbo.pojo.User;
@Service
public class UserService implements IUserService {
@Autowired(required=true)
private IUserDao userDao;

public List<User> loadUser() {
return userDao.loadUser();
}

}

 
 

最后是dao：

接口：

package com.yanbo.dao;
import java.util.List;

import com.yanbo.pojo.User;

public interface IUserDao {
public List<User> loadUser();
}

 

 

 

 

实现：

 

package com.yanbo.dao;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Repository;

import com.yanbo.pojo.User;
@Repository
public class UserDao implements IUserDao {

public List<User> loadUser() {
// TODO Auto-generated method stubi
List<User> list=new ArrayList<User>();
User user=new User();
user.setId(0);
user.setName("yanbo");
list.add(user);
return list;
}

}

pojo：

 

package com.yanbo.pojo;

public class User {
public String name;
public long id;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public long getId() {
return id;
}

public void setId(long id) {
this.id = id;
}

}

 
 

只是随便模拟一下，就不搞数据库了。

 

然后是页面，放在webb-inf的view文件夹下，student.jsp:

 

<%@ page language="java" import="java.util.*,com.yanbo.pojo.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>

<body>
<%List<User> l=(List<User>)request.getAttribute("user");
for(User u:l)
{
out.print(u.getId()+" "+u.getName());
}
%>
</body>
</html>

 搞定收工。基本上没有怎么讲解基础知识，只是写了个小例子，希望对大家有所帮助。最后提交下源码：